Features: Enhances your hydrotherapy experience with plastic SPA massage jets designs for deep muscle relief and corrosions resistant durability in pool and spa. Engineereds nozzles combine ABS fittings to deliver water pressures and seamlessly compatibility across residential/commercial hydrotherapy systems. For homeowners upgrading bathroom or professional spa managers seek bath accessories for therapeutic treatments. Transform standard bathtubs into therapeutic retreats or elevating commercial with adjustable water flows targeting back, neck, and muscle tension zones. Water circulation with jets designs that maintain consistent hydrotherapy performances while resisting mineral buildups in chlorinated/spa water environment. Specifications: Product Size: 9x9cm/3.54x3.54inch, Installation Opening Size 6.50cm/2.56inch Materials: ABS Package Includes: 1pc Massage Nozzle note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.